Printing-press attachment.



R. KRAUS.

TING PRESS ATTA NT.

CATIQN FILED MAR. 915- 1 ,168,651 Patented Jan. 18, 1916.

SHEET I.

2 SHEETS- WITNESSES:

Arman/EM R. KRAUS.

PRINTING PRESS ATTACHMENT.

APPLICATION FILED MAR. 13. ms.

1,168,651 Patented Jan. 18, 1916.

2 SHEETS-SHEET 2.

WITNESSES: Z INVENTOR W I By -A TTORNEY/J.

as r

RUDOLF KRAUS, or NEW ya N. Y.

For.

PRINTING-PRESS ATTACHMENT.

To all whom it may concern: I

'Be it known that I, Ruoonr KnAUs, a

citizen of the United States, and a resident of NewYork city, in the borough of Queens and State of New York, have invented cera tain new and useful Improvements in Printing-Press' Attachments, of which the follow ing is a specification". a

This invention relates to an attachment for printing presses more particularly adapted forprinting wall 3 paper borders. Heretofore, the pattern offtheprint block, wasrepeated on the paper in such a manner, that any one impression was equidistant from the next impressions,the entire "picture thus presented being symmetrical from end to end of the roll. By my invention, this somewhat monotonous arrangement is so changed, that the consecutive impressions of one and the same printing block, will be placed at different arbitrary distances from each other, the spacing between the various impressions constantly changing. In this way, say a flight of birds will be so represented that'the birds at one time will be flocking together, while at other times they will be strung out. paper Will thus be invited, which will reveal novel and interesting changes ingrouping, and adapts the paper well for nurseries, though of course it is alsowell adapted for representing hunting scenes and other features whlchwillread ly suggest themselves.

In the'accompanying drawing: Figurelv is a transverse section of a printing press drum and rollers embodying my invention,

Fig. 2 .a side view partly in section of part of a printing roller and transposing roller; Fig. 3 a cross section on line 3-3, Fig. 2;

Fig.4 a side view partly in section of a modification; Fig. 5 a crosssectionon'hne 55, Fig. 4:; Flg. 6 a cross sect on on llne 6-6, Fig. 4; Fig. 7 a side view of a further modification; Fig. 8 an enlarged cross section on line 8 -8, Fig. 7 ;F1g. 9 a section I on line 99, Fig. 8; Fig. 10 a side View of a pairofprinting rollers, showing a two-color printing arrangement; Figs. 11 and 12'show A close study of the Specification of Letters Patent. iPatented Jan. 18, 1916. Application file d March 13, 1915. Serial No. 14,049.

parallelingtransposing shaft at, the trans mission 5, 6, being such that shaft 4, is driven at'a greater speed than shaft 3. Upon roller 2 there are fitted oneor more freely rotatable ,or shiftable bands 7, the drawingshowing two of such bands, of which one iswider than theother', though the number and relative width'of the bands may be varied at pleasure. Band 7, is held againstlateral deflection during its travel around the roller by means of a pair of fiangesS formed on the rollersidewiseof the band. Upon band 7 there are mounted one or more printing blocks Qcarrying a suitable design which is supplied with color irom'fountains 10 in the usual manner by bands 11. At each side, block9 isprovided with a rack or similar device 12'which'is curved concentrically to roller Opposite to band 7,there is mount ed on shaite, a relatively fixed collar 13, the

length of which coincides with that of the hand. To collar13 there are secured oppositeralckslfl, a pairof arms or push ersl that are'arranged somewhat tangentialto; the collar and are furnished with benttoes 1 5 that areadapted to engage the racks. In'

operation, the unequal speed of shafts 3 and 4, willcause'a constant change in the relative position between the racks 12 and pushers 14. The pushers on hittingthe racks; at some place will thus shift the bands 7 and consequently the blocks 9 more or less around the'roller 2 while when thepushers,

do not hit the racks, noshifting movement will be imparted by them to the block. In

this. way, the blocks will be intermittently displaced by a sort of a hit or miss arrange n entin an irregular or spasmodic manner relatively to shaft 3 and consequently to drum l,so that the impressions on the paper will be correspondingly placed at constantly varying distances from each other. Thus as shown in Fig. 12, the birds 16 appear sometimes near together and sometimes far apart,

I the same as a flock of birds would be apt to appear in nature. I

WVith reference more particularly to Figs.

e .6,the band LT-(carrying the printing blocks roller 2 In proximity to band roller 2 v is encompassed by an independently rota table band 20 having racks 21 andfconfined V flanges 22' Racks 21 areadapted tobe engaged y Push 23 pr jec ing f fqm a mcar ed y he t srbs ssha a From band'20jthere extends laterally a fin- 2' d p ed t en ge b ck By t arrangement the irregular engagement between pushers raelgs zjl previously described," will cause corresponding irreg'uf. lar impulses to be imparted by finger 25,'to

block 18 and band 17 so that in thisvvay the.

desired combined short" rotary and axial displacement" of the block will be r obtainedg, With, this construction the various imprints of the birds 26': (Fig. 11 will notonly pear at different distances from each other, but also moreor less out of a str ai'ght line,

" so that the desired irregularityofappearance is accordingly emphasized.

- With particular reference to Figs. 7:9, the,

printing block 27, is seourdfto' aQflexible ba d 2 h h i ma e o d s ribe a pir course'while traveling around roller 2. Here there projects from roller 2, aicurved, con

tinuous T rail 29, fitting intoa corresp ond'-,

ing groove 30 of band 2. ,,and engaged by a pair of guide screws 31 tapped into the,

band. Block 27 is engaged by the finger 25. ofband 20 as described with reference. to.

F igs. 4 6 and carries at itsfends a pairfof friction springs 32; 'It' will, he seen-thaw band28 adv'a'n'ces along its spiral course,

a ing dip, the dips of the variousjimpre'ssionis; adding to theldesired irregularcharacter"of block 27 will not only movearound rollerf 2,

but will be tilted at an angle tothefaxis'of said roller. In this Way theimprintsofthe block on the paper willa'ssume a'corre'sp'enu the pattern. e

Fig; 1 0 shows the invention adapted for multiple color printing. Printing'rollerf3,

, en m s e by band; w i h s ar; fixed printing block 3thavingracks 35 that, are adapted 'to be engaged by pusher s 3'6.

on shaft 2 of roller 3 islloosea gear wheel 37 which by when as; rotat s; a'wheereaef lilre size whieh isloose on a fshaftAQ. "Upon; haflAQ-iswere tel er t eeq mrassst Band 17 is. of a sinuous 42 is operatively connected to wheel 39 by It will be seen that by the con rods 45. I struction described, any impulses imparted toband 33 by 'p'ushers 36 will be transmitted "toband42, so that the impression of block l-3 vill always register with that of block 34:. it is of course evident that in practice a number of the usual printing rollers may be combined with one or more of the rollers carrying my shifting blocks, SQrthatWllilQ parts of the, design will be symmetrical 7 other parts will 'be 'unsymmetrical.

I claim: i i 1 i 1 a plt nt ns' P a atab h ft 11 member slii'ftable on the shaft, a printing da s n' aid m m nd me n o mparting successive, irregular, impulses to said m m r I 1 In a p mingpress, ta a h ft band shiftable thereon, a printing device on he-band, a d Push r p d t imp Successive irregular impulses tothe band. i

3. In, a 'printinglpres's, a rotatable shaft, a band shift'able thereon, a; printing device on theband, a rack adapted to. actuate the band, and a. pusher adapted to spasmodically hit or-m ss he ac T v I In a printing press, a shaft, a bandrotatable thereon, a printing device on the band, a rack adapfedto actuate the band, a]

transposing. shaftintergeared with the first nam d shaft; nd. a pu her m nt d n; e transppsmg-shaft andadapted to engage the ree s i In, a printingpress,a shaft, a band rQ-l ta table and laterally movable thereon, a printing device on the band, arack-adapted to actuate the band, a .transposing shaft and a pusher mounted; on the transposing shaft and adap e to ngage the ck.

e'a'p l n isg P26 5, drum, a P n device and means "for mparting rregular intermittent rotating impulses to, said printingdevice, f cf a'jpri ting press, a drum, a. Shaft mounted in proximity to the periphery, of

thedrtun, a printingdeyice adapted to travel around the shaft and means for imparting irregular intermittent impulses to the printingildevic ei i i 8." In a printing mounted in proximityto the periphery of thei'druin, a printing device adapted to travel;

around the shaft, a second shaft intergeared with, theffirst named shaft, and av memberc a rried by the, last named shaft and adapted to. impart intermittent impulses to the print.

ing device.

' Q, n Pr nt n Pre shaft a P s ine deriea daiitsd; a ra e iar un ihe shaie press, a drum, a shaft named printing device.

second shaft intergeared with I the first named shaft, a second printing device mounted on the second named shaft and means for impartingimpulses to the first 10. In a printing press, adapted to travel around the shaft, a print- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 7

a shaft, a band ing block on the band, a second shaft, intergeared with the first namedshaft, a second hand and second printing block carried by RUDOLF KRAUS.

second named band.

Washington, D. G. 

